Automatic calendar stitcher



Dec. 18, 1928. I 1,695,897

- F. J. KRlsroFEK Er Al.

AUTOMATIC CALENDAR STITCHER Filed March 19. 1921 9 Sheets-Sheet 1 OscarWHa marga/3f. yla/b Dec. 1s, 192s. l 1,695,897

' F. J. KRISTOFEK ET AL AUTOMATIC CALENDAR STITCHER Filed March 19. 1921 9 Sheets-Sheet '2 Osc rW ymmeryu/Isl'. Ey

D. 1s, 192s. 1,695,897

- F. KRISTOFEK ET AL Y AUTOMATIC CALENDAR STITGHER Filed March 19. 1921 9 sheets-Sheet 5 Oscar W meryc/ Decn 1s, 192& 1,695,897

F. J. KRISTOFEK ET AL Au'rom'nc CALENDAR s'rz'rcxmx Filed March 19. 1921 9 sheets-sheet 4 lllllll Meir fforwey.

Dec. 1s, 1928. 1,695,391 'F. J.' KRISTOFEK ET AL AUTOMATIC CALENDAR STITCHER Filed March 19. 1921 9 Sheets-She. 5

Der; 18,1928 1,695,897

E. J. KRISTOFEK El' A L AUIMATIC CALENDAR STITCHER 9 Sheets-Sheet 6 Filed Marenga. 1921 Fig. 7

fnl/anfora' Dec. 18, 1928.

. 1,695,897 F. J. KRls'rol-'EK Er AL AUTOMATIC CALENDAR STITGHER Filed' March 19. 1921 9 sheets-sheet 7 Dec. v18, 1928. 1,695,897

F. J. KRISTOFEK ET AL AUTOIATIC CALENDAR STITCHER Filed March 19. 1921 9 Sheets-Sheet 8 y@v Nw ...u ww l n l l///////. ll lil, NM.

115.555,71 56:52. l l I I n l1 L llqlllwulllll i Meir farn'ey,

Dec. 18, 1928.

F. J. KRISTOFEK ET AL AUTOMATlC CALENDAR STI'IICHER- Filed March 19, 1921 9 Shebs-Sheet 9 NNI Il Tlllvlll H PIIIIIIIIIIHH H 1o tial. that itfbe placed centrally and in a uniand feeding means on the line it-54:, Figstitched with the wire stitches by manual for vholdi Patented De@o 1S, 1928,

ui'rED. sTA-'ilSyL PATENT GFFICE FRANK J. KRISTOFEK AND'OSCAR'W.VHAMMERQIST,VOF ST. lPAUL, MINNESOTA, AS-

SIGNORS TO BROWN & BIGELON, 'F EAUL, MINNESOTA, A COBPORATON 0F MINNESOTA. y

' '.AUTOLIATIC CALENBAR STITCHER.

Application le March 19, 1921. vSerial No. 453,793. Uur invention relates to rautomatic cal- Figure l is a plan view of our automatic 55 endar stitchers, the primary object of which calendar stitcher. p isto provide means to automatically stitch Figure 2 is a perspective-view ci a porthe calendar padsto the back With wire tion ofthe saine. Y

5 stitches in aiunitorm'manner to 'facilitate vFigure 3 is a sectional side elevation of means tor stitching a large number oiL calour stitcheroii the line 3 3 Figure l.` 60 endars in a. short time and eliminating a Figure lis atransverse section :of thev great deal of manual labor'. When the calstitclicr a portion oi which. is broken away endar pad is stitched to the back'it is esseii-t and illustrating the monthly pad holding viorin position in relation to the border of ure i. y l, 65 the back to makeup a calendar with a neat re 5 is a transverse crossY sectionv of appearance and to hold the calendar pads the s itclier, only a portion of which is illusstationary with the back until they are ti-ated, showing the stop operating1 means the calendar back stationary ly in the stitcher on the line 5415, 70

operation, is a slow and uiiaccurate process. inoinentai Our invention is designedto automatically Fi gure i. n y y place and hold a calendar pad in position Figure 6 a detail side elevation of a above the hack sor that each pad will he portion ot the stop operating means illnsplaced in the same' position on the back and trated in Figure 5.

while the pad is held in the-desired lposition Figure 7 is view similar to Figuren with 75 it is automatically stitched to the hack with tile parts in a dilierent position.

the stitches uniformly positioned in relation Figure 8 is a view similar `to Figure 6 `with to the pad and hack sor as to stitch one or the parts in a diillerent position.

more calendarsJ with the same accuracy in a Figure 9 illustrates a detailside elevation rapid manner and to discharge thecalendars ot a portion of the stitcher showing` some oit 80 in a finished form. Y 'lie driving; gears. i

The calendar backs and the calendar pads Figure 10 is a detail of the feeding ratchet. are individually `fed into the machine automechanism ci the stitcher. matically and separate ot each other, being Flgill'c ll 'iS/.en enlarged side elevation of squared with the pad in a manner to propthe detail portion oit the calendar pad holderly position ythe same in relation to the` er7 illustrating the. feeding;l mechanism.

back so that whenY the pads are stitched Figure l2 is e Smll'll View i0 Figure ll. each and every calendar is discharged .trom illustrating' the parts in a ditl'erent position. the machine with the par s and stitchesuniy ln thedrawings represents our autotormly positioned on the back. This tacilitic .stitching machine which is provided 90 tates handling the calendars very rapidly with a ,stitching head B ot or( l and eliininatcs a large amount oit' manual struction toi.' stitching; pads wi". wirex labor, which is always inclined to be inacstitches, the head being held in position. by

40 curate7 cspec'ally when it is desired to turn the forwardly projecting arm 10 through out a large number in a short time. which the main shaft 1l ior operating the 95 The invention includes means `for holding` stitclier entends.A The shaft 11 is operated the calendar pads collectively with feeding by the. chain drive l2,V which connects with 'means adapted to feed the saine individually he drive shattll. rlShe stitcher B receives into position to be stitched to the hack while stitching wire. from the spools 14- so that in the feeding` inea smultangougly with placingthe pad in porspools to the ,stitching head for making' a sitioii to he stitched to square the hack in large number ot stitches. vrelation to the pad. This operation takes The shatt 'i8 is the main drive shalt v ot place during a momentary stopping oi the :the machine Ar and is driven by the motor calendar back as it passes through the ina- C by the belt 15, which is enclosed inthe chine. Vguard 16.` A hand operating vwheel 17 is in the drawing` forming a part ot this secured to the operator side or front; ot the l speciiication: machine A so that parts of the machine can ns engages the calendar back operation suiiicient wire supplied by the 1GO be rotatedV by hand when desired in setting` or starting the operation of the `machine A.

A calendar baclr holdings;` and feedingl table D Ais Secured at an inclined position 'to one end of the machine A, the incline of which is adjustable by the supporting bracket arm 18 to position '"lendar backs 19 at an incline on the ta l) to feed the backs into the' machine individual-- lv in the desired manner. fit the oppos e ehd of the machine fr a receivin.nh table E is secured which is positioned at incline in a manner to' receive the linie-hed celendersy 2O as they are discharged :from vthe stitch mach-ine ile Approximately central between the receiving and discharge ends of the machine il:r a? monthly calendar pad' hol cempaitment F is positionedr at the front of the machine A, directly in front of the stitchine` headl B. A series of calendar pads 2l :ne held collectively inf the compartn'ient F in a mannerso' till-at they can be readily' fed individually to a position above the calendar bacl- 19A by the pad feedingmeanM r which is operable beneath the pads to feed them into the desired position. The pad fee'cliig means G is operated by the shaft which isl connected with the drive shaft 13 by the gears 23 and extends longitudinally of the machine A beneath the calendar bach feeding' mechanism. A; cam 2l 's secured in the ordinaifyfl manner to 'the shaft 22 and operates the rod 25 which is connected by a suitable strap to the cam 2li on one end While the other endl of the rod ii'if'o'ikallp., connected at 26 to the pad' fee( me operating arm 27. The lever 2'? is piroted between its ends at 28 to a suitable brac f 29 and is connected by the lmlr 30 to tue pad; feeding tonguev 3l. rlhe forward end of the tongue 8l is out away 'to forni a thin flat plate-like engaging` end 32 with a' notch 33 at the back of the saine which is adapted to individually engage the calendar monthly 'pads 2l. rilhus during` the operation of the machine A the shaft 13 will rotate the shaift 22, vwhich in turn operates the rod'25 to reciprocate the lever 27 baul; and forth which operates the tongue 3l in a manner to feed the pads 2l out of the eoi'npartnient F int-o position to be stitched to the calendar backs 19. A second monthly pad engaging shoulder 3d is formed on the tongue 3l which enga `one of the pads 2l, as illustrated inv llignre l2, to push it forward when the tongue 8l' is in extreme forward position. This shoulder forces pad at the bottom of the series the compartment F iiito'position ready to be engaged by the notch 323 when the feeding` tongue Bl moves back intov i'ear-njiost positiom as illustrated in Figure ll'.- rlhe enlarged illustrations of thev feeding mechanism G and calendar monthly pad holding compartinentl F in 'Figures lll and l2 clearly illustrate the 38 directly beneath the feeding rolls Vlhis feeding` means isof ordinary construcn being` formed in a manner to feed a fiile baci; 19 at a time into the machine A a d lo prevent more than one baclr being fed therein. rlhe shaft 1s operated by the ratchet mechanism 39. The rack 40 is held by the loop el into engagement With the gear Ll2 the ratchet mechanism asillust rated in '.l .Oruro l0. The rack i0 is 'operated. by the lever lo which is pivoted atest and the free end of which' carries a can-1 eii`- roller Lili. r1he lever el?) isoperated b the cam t6 which is secured tothe opei shaft 13 irliile the roller l5 of the arm is held by the spring-I 47 into engagement' with the' cani 46. During; theoperation of the machine A; the feeding" mechanism ll Will be operated intermittently by the cani el@ and the lever arml 43, which operates the ratchet mechanism 39'. A

lllhen the calendar backs 19 are fed into the machine A they are picked up by a series of feeding` tapes 4:8, Sand 50, which aline with 'the adjacent lower feedingv tapes 5l, 52 and respectively. rl-hesetapesare operated by the driving?J shafts 54 and 5 5 which operate in unison by means ofthe gears 5G and 57, the gears 56 and 57 meshing with each other While the gear 57 meshes with the driving gear 58, Which is secured to the driving` shaft 13. These gears are allenclosed Within the casing or 0i ,rd 59,v illustrated in Figure l, in the ordinary manner.

rllhe feeding;l tapes carry the backs 1.9 into and through the macliine. y

The calendar `backs 19 are fed rapidly into the machine A so as to be by lll) the 1" eding tapes and while they ordinarily l pass in line through the tapes it is essential that suitable gauges operate quicldy to aline them into the proper position beneathl the stitching head l against the longitudinally extending guard or stop 60 which extends along` one side of the feeding tapes andv is adjustably positioned to accommodate various lengths or .sizes of the calendar 'baclis l). The baci: positioning arms or stops (il.

are secured bei'ieath the pad receptacle F andV are held normally in backward position by the coil springs 62 with the bach engaging' ends 63 Withdrawn and. adapted to forni shoulder to limit the backward movement of the stops 6l. The transversally extending;- member 64 is adjustably secured `by 'the screw G5 to the outer end of the padfeeding tongue 8l in position to engage the outer ends (36 of the movable stop 6l. The member 64 is positioned on thev tongue 31 in a manner so that when the tongue is inrits backward or withdrawn position as illustrated inVv Figure 11, the member 64 is out of 'engagementv and spaced from the end 66 of the stop 61. Thus `when the tongue 31 is operated by the lever 27-it can be moved forward for some distance before the member 64 engages the end 66 to operate the stops 61.y The purpose of thisis to position the member 64 so that the'end 63 will ,engage the edge of the calendar backs 19 yat the end of the stroke of the feeding tongue 31 just at the vmoment that the pad 21 is positioned in the proper relation to the back19 to be stitched thereto. In this moment the stitching mechanism of the head B .is adapted to be operated so as toy stitch the pad 21 to the back 19 in the ordinary well Yknown manner of wire stitching mechanism,

Itis essential that the calendar back 19 be held stationary at the moment it isv beA ing stitched'and we provide suitable stops 68Y which are adjustably securedto the transversally extending shaft 69 in the path of the travel of the calendar backs .19. The shaft 69 is adjustablev longitudinally of the machine A while the stops 68 are adjustable longitudinally of the shaft 69, thus yallowingthe'stop 68 to be positioned at the desired point to engage the calendar backs` ofV different sizes which may be passed through the machine A. The shaft 69 is rotated so as to operate thestop 68 by the .belt'crank lever 7() which is secured toL one Vvend of the shaft, thefreey end of which is provided with anti-friction roller which engages against the horizontally extending operating member 71; Themember 71 has a long engaging surface for the anti-friction roller at the free end of the arm 70 to allovs7 the operation of the stops 68 in their various positions.l The operating member 71 is provided with a downwardly extending portion 72 which is pivotally connected at 73 to an operating lever arm `74. The lever 74 is pivotally secured between its ends 75 to the supporting bracket 76 while thelfree end of the lever is provided with an antifriction roller 77 which is adapted to engage against the operating cam 78 that is secured to the shaft 22. Y

. In the course of 4the loperation of the machine A the stops 68 are dropped into the position illustrated in Figure 6 in the path of movement of -thecalendar backs 19 to engage tliesame and to hold them` momentarily at the moment that the stitcher is timed to operate to stitch the calendar pad 21 to the back. As soon as the stitcher has operated the lstops 68 are released by the l member 71 which forces the lever crank 7() upward and moves the stops 68 out of position of the path of travel of the backs7 allowing thefeeding tapes to carry .the same out ofthe machine'A and discharge it into the receiving receptacle E in aiinished form as the calendars 2O illustrated in Figure 3, Thel releasing position ofthe stops 68jvis clearly illustrated'in Figure 8 andit'is sential that these stops be operated quickly andtimed so as `to operate in unison with the stitching mechanism in the head B so that the stitched calendarcan be vdischarged in nished form out of the machine while another back 19 with the pad 21 are brought into position to be stitched.

`All of the parts of the machine A are timed with-relation to cach Aother so that keach element functions to give the desired results and in this manner the calendar backs 19: are passed rapidly intovposition to be stitched while the pads are fed to aposition invrelation to the back so that each and every calendarv when discharged from the machine in its finished form is uniformly stitched with the wire stitches accurately spaced apart and Vin the same position as each and every calendar; `Our machine A has been operated vin a manner to stitch more than fifty thousand calendars a day and as this woi'k was accomplished heretofore by other manual labor which is bound to be uncertain and inaccurate the merit and advantage of the voperation and work of our machine is readily apparent. The machine A can be operated by one or two operators to accomplish' as much work as more than fifteen individual y operators with other( rangement and construction of parts, but vwe desire to have it understood that this is n oiilyillustrative and that the invention can be carried out byl other means andapplied yto uses otherv than those, above set :forth within the scope ofthe following claims. o

VHaving described our invention we claim: 1. A devi/ce ofthe class described comprising7 a unit stitching head, a belt carrying means associated with said head Iin a manner llo to convey articles there between in a flat plane y to be stitched by said stitching head and carried to and from said'stitching head, a rlongitudinally extending stop gauge, and means for stopping the articlesand simultaneously moving the same into engagement with said longitudinally extending stop gauge to hold kthe aiticles stationary momentarily in a set v position when being stitched7 said belt meansA r article transversely, and* meanscooper`- .against which the sheets are squared,

coi'itinuing in operation to movesaid articles along said` longitudinal stopV gauge when released. Y f

2. ln stitching device comprising a stitching means,` continuously operating conveying' means for conveying articles to and 'past said stitching means, a" stationary gage,

and means cooperating with said' stationary gage to' adjust said articles for said' stitching means. Y

3. InI a stitching device including a teoding table at one end, a stitching means, a belt conveyor etenrling past said stitching means in a manner to carry articles between the belts ot the' conveyor to and 'from said stitching mea-ns, lrai'isversc stop means interposed 'in the path of' said articles, longitudinal` stop means extending along one side ot the articles, reciprocating means coop'- erating With said longitudinal' stop"means to align the articles longitudinally and together with 4said'transveej stop means hold the articles stationary While said stitching means isin operation and said conveyor continues to operate, and means for automati cally releasing said stop means to allow said conveying means to pi'cl up anddischarge the article asfit stitched' out of said device.

Ll. An automatic' stitcher comprising ivire stitching- 5,J means, continuously operating conveying means including a series oit endle f belts between which larticles`v are' conveyed, stop mezins adaf ed to move into the path ot the article conveyed to align' the ne the article with both longitudinali ed!` for aligning the article' long-i L ily.

5; An automatic'v stitching device, including a Wire stitching' means, a pair of upper and lower endless conveyors associated with said stitching means in a manner to convey sheets to and from said stitching means, sheet feeding" means at one end, means for automatically opera-ting saidI sheet feeding means intermittently to' leed onesheet at a time to saidi conveyor, rotatable'l transverse stop means to stop the' sheets at said' stitching means adapted to litt up to release the sheets, squaring means moving the individual sheets transversely to square the same at the stitching point, longitudinal guide means receiving table at the opposite end to the sheet feeding means=` to'receiving the sheets as they are discharged ,individually*Y from the stitche'r.

G. A deifice ot'the class' described comprit'- ing, a stitching headpairs ot" endless belt conveyors positioned beneath said head and extending on either side thereof, a sheet tecdingtable on one endt ot said conveyor, means for feeding the sheet-strom said table to saidconveyor iiiL a` manner to carry -the sheets betweenv saidfconveyor and pass them beneatlisaid stitching head, a shet receiving ltable at the other end of said conveyor, a stop' associated With said conveyor including a rotatable vshaft having a pair ot lstop lugs adjustably positioned thereon, and means'tor rotating said shaft to carry said lugsv into` operating position. f

7. The combination of a Wire stitclierihav- 8. The combination or an intermitten'tly operated Wire stitcher, continuously'operat-V ing conveying means, stop means' interposed in the path ot said conveying`- means; aI longitudinally extending gauge, and meansadapted to engage articles carried byy said con- \f'eying means and' push them against said lbngitudina'll'y extendingv to vcanse a uniform stitching of theV articles carried by said conveying means, While' said stop means ctsas' av gauge for one side ot"v the articles carried by the conveyor.y i 1 9. A device' ot the class described, comprisingendless feeding conveyors associated together iny a manner. to carry sheet-s between the same, the conveying portion of' said conveyors extending l approiimately in a straight plane to permit cardboard sheets'to be passed straight through said conveyor, a feeding means associated with one end oi said conveyors, a` receiving table associated With the other endl ot said conveyor, astitching head interposed between' the ends of the conveying' portion ofv said' conveyor, stop p lugs positioned adj acent: said stitching head, and means for operating said' stopv lugs' in: a manner to cause the same to' he lifted` simultaneously to release the card boardV sheets passing through' said conveyors Without bending the cardboard. A Y

l0. A device for. stitching calendar vpads to calendar backs, including endless'belt conveyors adapted' to entend in approximately' ai straight plane th'roughoutth'e' convoyingl portion thereof, anv inclined feeding table, calendar' back feeding meansadrqote'd and means to square the aalen'dar backs as Jthey are individually pushed'into position before they are stitched.

1l. A calendar back stitching device,`in` cluding a stitching heath conveyors associated with said stitching head in e manner to convey calendar backs to and from said stitching head, stops asseciated with said conveyor, means for raising seid stops, n longitudinally extending guide, and means for pushing the calendar backs against seid guide tosquare the same. f y

l2. A calendar stitching device including a stitching head, :i conveyor cia-ted With said head. feeding tablea a receiving table, Stop members interposed in the path of travel of calendars carried by said conveyor7 means for simultaneously operating said stops to raise and lower. the saine, shifting means adapted to shift the calendars transversely in said conveyor to individually place each calendar 1n the seme relative positie-11 with 1e s nu intr nac` in a manner ci cansL me stitching to be approximately in the saine place in each calendar, and ak stationary member against which said shitting ineens is adapted to push the calendars.

13. A calendar stitching device including a feeding table, a delivery table, a. straight conveyor extending between said feeding and delivery tables, a stitching means interposed between saidy tables, said conveyor adapted to be operated continuously, stop lugs positioned to hold calendars stationaryy means iler rota-ting said shaft ink a manner to lift said stop lugs to permit the calenders to be carried to said delivery table, al

guide extending longitudinally With said conveyor, and means operating transversely oli said conveyor 1n a manner to square the calendars against said stopping lugs and.

guide just prior to the stitching operation 'whereby each calendar is stitched in the seme relative position.

14.. A device for stitching calendar pads to calendar backs, including conveyor means, a stitching means, means for stopping the calendar back ,While being stitched7 means including a stationary member and a movable member for equal-ing the calendar backs in said conveyor at the moment of stopping, es they are individually pushed into position bef-ore they are stitched.

FRANK J. KRISTOFEK. OSCAR W. HAMMERQUIST. 

